SIP Auto-Debit Failed? Here is What to Do to Fix Bank Mandate Issues

A failed SIP auto-debit can happen to anyone — insufficient balance, expired bank mandate, or a technical glitch. Here’s what to do when your SIP installment doesn’t go through, and how to prevent it from happening again.

Why Does SIP Auto-Debit Fail?

There are several reasons your SIP installment may not be deducted:

1. Insufficient Bank Balance

The most common reason. If your bank account doesn’t have enough funds on the SIP date, the debit will fail. Banks typically charge ₹150-750 for a failed ECS/NACH transaction.

2. Expired or Cancelled Bank Mandate

Your auto-debit mandate (also called a standing instruction or NACH mandate) may have expired. Most mandates are valid for a specific period or number of transactions. Once expired, new installments will fail until you create a fresh mandate.

3. Bank Account Changes

If you changed your bank account, switched accounts, or updated your KYC without updating the SIP mandate, the auto-debit will fail.

4. Technical Issues

Sometimes the failure is on the bank’s or AMC’s side — server downtime, NACH processing delays, or system errors during holidays/weekends.

5. Account Frozen or Dormant

If your bank account is frozen due to a court order, or has been dormant due to inactivity, debits will fail.

6. Wrong Account Details

Incorrect account number, IFSC code, or account type (savings vs current) in the mandate can cause failures.

What Happens When SIP Auto-Debit Fails?

The SIP continues. A failed installment does not cancel your SIP. Here’s what happens:

• The installment is skipped for that month
• Your SIP continues next month automatically
• No units are purchased for the failed month
• Your bank may charge a failed transaction fee (₹150-750)
• After 3-4 consecutive failures, the AMC may auto-cancel the SIP

Important: If you’ve set up SIP with the AMC directly (not through a platform), 3 consecutive failed installments may lead to auto-cancellation. Platforms like Groww, Zerodha Coin, and Kuvera typically allow more retries before cancellation.

How to Fix a Failed SIP

Step 1: Check Your Bank Account

• Verify you have sufficient balance
• Check if the account is active and not frozen
• Look for any holds or restrictions on the account

Step 2: Check the Mandate Status

On your investment platform:

1. Log into Groww/Zerodha/Kuvera/Paytm Money
2. Go to “My SIPs” or “AutoPay Settings”
3. Check if the mandate is active
4. If expired, create a new mandate

Through your bank:

1. Log into net banking
2. Go to “Standing Instructions” or “NACH Mandates” or “AutoPay”
3. Find the mutual fund SIP mandate
4. Check its status — active, expired, or cancelled

Step 3: Create a New Mandate (If Expired)

1. On your investment platform, go to SIP settings
2. Click “Update Bank Mandate” or “Create New Mandate”
3. Enter your bank details
4. Approve the mandate via net banking, debit card, or Aadhaar OTP
5. The new mandate typically activates within 2-3 business days

Step 4: Pay the Missed Installment (Optional)

Most platforms allow you to make a one-time lumpsum payment for a missed SIP installment:

1. Go to the fund page
2. Select “One-time Investment” or “Lumpsum”
3. Enter the same amount as your SIP
4. Invest — this catches up on the missed installment

Note: This is optional. You can also just let the SIP continue from next month.

Step 5: Set Up Alerts

• Enable SMS/email alerts for SIP debits on your bank account
• Set a reminder 2-3 days before SIP date to ensure sufficient balance
• Some platforms send push notifications before SIP deduction — enable these

How to Prevent Future Failures

Maintain Buffer Balance

Keep at least 2-3 days of buffer before your SIP date. If your SIP is on the 5th, ensure the account has sufficient funds by the 2nd.

Use a Dedicated Account

Consider using a separate savings account just for SIP deductions. This makes it easier to track and maintain the required balance.

Set Up Net Banking Alerts

Most banks allow you to set up balance alerts. Configure an alert for when your balance drops below your SIP amount.

Update Mandate Before Expiry

Mandates typically expire after a certain period (1-5 years) or number of transactions. Set a calendar reminder to renew it before expiry.

Use Platform’s AutoPay Feature

Platforms like Groww and Zerodha have their own AutoPay features that handle mandate management and retries automatically.

Common Mistakes to Avoid

1. Ignoring Multiple Failures

If your SIP fails 2-3 times, don’t assume it will fix itself. Check and resolve the issue immediately.

2. Not Checking Bank Charges

Failed NACH transactions incur charges from both the bank and the AMC. These are typically ₹150-750 per failed attempt. After 4-5 failures, these add up.

3. Cancelling the Wrong SIP

Sometimes investors cancel the SIP entirely instead of just fixing the mandate. The SIP should continue — you just need to update the bank details.

4. Forgetting to Update After Account Change

If you switch banks, always update your SIP mandate immediately. Don’t wait for a failure to discover the issue.

What If My SIP Was Auto-Cancelled?

If your SIP was auto-cancelled due to consecutive failures:

1. Check if it’s cancelled or paused — Some platforms pause rather than cancel
2. Create a new SIP — Same fund, same amount, same date (or different date)
3. Update bank mandate — Use your current active bank account
4. Your existing investment stays — Previous units remain in the fund

How Failed Installments Affect Your Returns

A single failed installment has minimal impact on long-term returns. But multiple failures compound the loss:

Scenario	Total Invested (20 years)	Approximate Corpus (12% returns)
No failures	₹24,00,000	₹98,90,000
1 failure per year	₹22,80,000	₹94,00,000
2 failures per year	₹21,60,000	₹89,20,000
3 failures per year	₹20,40,000	₹84,50,000

Disclaimer: These are illustrative calculations assuming a fixed 12% annual return. Actual returns depend on the specific fund and market conditions. Past performance does not guarantee future results.

Each missed installment is money that could have compounded for decades. Fix failures quickly.

FAQs

1. Will my SIP be cancelled if auto-debit fails once?

No. A single failure does not cancel your SIP. However, 3-4 consecutive failures may lead to auto-cancellation by the AMC.

2. Can I skip a SIP installment deliberately?

Yes. Some platforms allow you to skip a specific installment without cancelling the SIP. Check if your platform has a “Skip Installment” option.

3. Is there a charge for failed SIP auto-debit?

Your bank may charge ₹150-750 for a failed NACH/ECS transaction. The AMC may also levy a charge. Check with your bank and AMC.

4. How do I know if my mandate is active?

Check your investment platform’s AutoPay/Mandate settings, or log into your bank’s net banking under “Standing Instructions” or “NACH Mandates.”

5. Can I change my SIP date to avoid failures?

Yes. Most platforms allow you to change the SIP date. Choose a date a few days after your salary credit to ensure sufficient balance.

Key Takeaways

• SIP auto-debit failures are common and fixable — don’t panic
• The most common causes are insufficient balance and expired mandates
• A failed installment skips that month but does not cancel the SIP
• Fix the issue within 1-2 months to avoid auto-cancellation
• Set up bank alerts and maintain buffer balance to prevent failures
• Each missed installment is lost compounding potential — resolve quickly

Use our SIP calculator to see how even a few missed installments can impact your long-term corpus over 10-20 years.